qumas.MicrolensingTimescale.v_cmb module

ra_dec_to_unit_vector(ra, dec)[source]

Convert RA and Dec to a unit vector.

Parameters: ra – Right Ascension in degrees dec – Declination in degrees

Returns: A 3-element numpy array representing the unit vector.

calculate_projections(ra0, dec0, cmb_ra=167.9, cmb_dec=-6.9)[source]

Calculate the projections of the CMB dipole on East and North directions.

Parameters: cmb_ra – RA of the CMB dipole in degrees (J2000) cmb_dec – Dec of the CMB dipole in degrees (J2000) ra0 – RA of the point of interest in degrees (J2000) dec0 – Dec of the point of interest in degrees (J2000)

Returns: A tuple with (v_north, v_east), the projections of the dipole on the North and East directions.